按結構形式(shi)(shi)和受(shou)(shou)力特點樓梯形式(shi)(shi)可分為(wei)板(ban)式(shi)(shi)、梁式(shi)(shi)、懸挑(tiao)(剪刀)式(shi)(shi)和螺旋式(shi)(shi)，前兩(liang)種屬于平面受(shou)(shou)力體系，后兩(liang)種則(ze)為(wei)空間受(shou)(shou)力體系。

板(ban)(ban)(ban)式(shi)樓(lou)梯是(shi)(shi)由(you)梯段板(ban)(ban)(ban)、平臺板(ban)(ban)(ban)和(he)平臺梁(liang)組成。梯段板(ban)(ban)(ban)是(shi)(shi)一塊帶踏步的(de)斜(xie)(xie)板(ban)(ban)(ban)，斜(xie)(xie)板(ban)(ban)(ban)支承于(yu)上(shang)、下(xia)(xia)平臺梁(liang)上(shang)，底層下(xia)(xia)端支承在地壟墻上(shang)。板(ban)(ban)(ban)式(shi)樓(lou)梯的(de)優點是(shi)(shi)梯段板(ban)(ban)(ban)下(xia)(xia)表面(mian)平整，支模簡單;其缺(que)點是(shi)(shi)梯段板(ban)(ban)(ban)跨度(du)較大(da)時，斜(xie)(xie)板(ban)(ban)(ban)厚度(du)較大(da)，結(jie)構材料用(yong)量較多。因此(ci)板(ban)(ban)(ban)式(shi)樓(lou)梯適(shi)用(yong)于(yu)可變(bian)荷載較小、梯段板(ban)(ban)(ban)跨度(du)一般不(bu)大(da)于(yu)3m的(de)情況(kuang)。